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On the occurrence of the rare copper molybdate, lindgrenite, at Brandy Gill, Carrock Fell, Cumberland

Published online by Cambridge University Press:  14 March 2018

Arthur W. G. Kingsbury  and
J. Hartley
Arthur W. G. Kingsbury
Affiliation:
Department of Geology and Mineralogy, University of Oxford
J. Hartley
Affiliation:
Department of Geology, University of Leeds
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Abstract

Lindgrenite, a basic copper molybdate Cu3(MoO4)2(OH)2, was first described in 1935 by Palache from the oxidized zone of the great copper deposit at Chuquicamata, province of Antofagasta, Chile. A second occurrence has been recently described from the Helena mine in the Seven Devils mining district, Adams Co., Idaho, the first recorded in the U.S.A. In this paper we are able to record a third occurrence; this time in Cumberland, adding another species to the list of British minerals.

Type
Research Article
Information
Mineralogical magazine and journal of the Mineralogical Society , Volume 30 , Issue 230 , September 1955 , pp. 723 - 726
Copyright
Copyright © 1955, The Mineralogical Society

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References

page 723 note 1 Palache, C., Lindgrenite, a new mineral. Amer. Min., 1935, vol. 20, pp. 484–491..Google Scholar[M.A. 6-147.]

page 723 note 2 Cannon, R.S. and Grimaldi, F.S., Lindgrenite and cuprotungstite from the Seven Devils district, Idaho. Amer. Min., 1953, vol. 38, pp. 903–911. Google Scholar [M.A. 12-400.]

page 723 note 3 Goodchild, J.G., Geol. Mag., 1875, decade 2, vol. 2, p. 565 CrossRefGoogle Scholar.

page 723 note 4 As is often the case with such veins in the district, small amounts of copper are generally present, and the mineral contents of the vein may be variable over short distances

page 725 note 1 The wulfenite was found only on the centre dump from the eastern level, and, so far, we have found no trace of molybdenum minerals on the west side.

page 726 note 1 The indices and letters of Palache arc retained in lieu of the new setting in Dana's System of mineralogy, 7th ed. 1951, vol. 2, p. 1094. which is based on the X-ray unit cell of Barnes, W.H., Amer. Min., 1949, vol. 34, p. 163.Google Scholar correction, p. 611. IM.A. 10-537,11-101.]